40239230 has 16 divisors (see below), whose sum is σ = 73304784. Its totient is φ = 15901440.

The previous prime is 40239223. The next prime is 40239247. The reversal of 40239230 is 3293204.

It is a junction number, because it is equal to n+sod(n) for n = 40239196 and 40239205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23411 + ... + 25070.

It is an arithmetic number, because the mean of its divisors is an integer number (4581549).

Almost surely, 2^40239230 is an apocalyptic number.

40239230 is a deficient number, since it is larger than the sum of its proper divisors (33065554).

40239230 is a wasteful number, since it uses less digits than its factorization.

40239230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48571.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 40239230 is about 6343.4399185300. The cubic root of 40239230 is about 342.6756305262.

The spelling of 40239230 in words is "forty million, two hundred thirty-nine thousand, two hundred thirty".